Short answer · Medically reviewed summary · Last updated: 2026-05-08
TL;DR: Polycythemia Vera is a chronic myeloproliferative neoplasm characterized by the overproduction of red blood cells, which thickens the blood and leads to symptoms like headaches, dizziness, fatigue, and a characteristic itching sensation after warm baths. Because Polycythemia Vera increases the risk of blood clots, patients must monitor for sudden changes in health that could indicate cardiovascular complications. What are the most common symptoms of Polycythemia Vera? In the early stages, many patients with Polycythemia Vera are asymptomatic, with the condition discovered only during routine blood work showing high hemoglobin levels.
2 people with Polycythemia Vera have shared their first-person experience on this question at DiseaseMaps.
TL;DR: Polycythemia Vera is a chronic myeloproliferative neoplasm characterized by the overproduction of red blood cells, which thickens the blood and leads to symptoms like headaches, dizziness, fatigue, and a characteristic itching sensation after warm baths. Because Polycythemia Vera increases the risk of blood clots, patients must monitor for sudden changes in health that could indicate cardiovascular complications.
In the early stages, many patients with Polycythemia Vera are asymptomatic, with the condition discovered only during routine blood work showing high hemoglobin levels. As the disease progresses, the increased blood viscosity often leads to systemic issues. The most common symptoms reported by our 118 community members at DiseaseMaps.org include:
The burden of Polycythemia Vera varies greatly between individuals. While some live with stable counts for years, others experience debilitating fatigue and bone pain. The risk of thrombosis (blood clots) is a constant concern, which can lead to anxiety and a need for frequent medical monitoring. Managing Polycythemia Vera often involves regular phlebotomy (blood removal) to reduce cell counts, which can temporarily increase feelings of exhaustion.
Because Polycythemia Vera increases the risk of stroke, heart attack, and deep vein thrombosis, you must seek emergency care if you experience: sudden chest pain, shortness of breath, sudden weakness or numbness (especially on one side of the body), or severe, unexplained pain in the legs.
As Polycythemia Vera progresses, the bone marrow may become scarred (myelofibrosis), leading to a transition where red cell production drops, causing anemia. Patients may notice increased bruising, night sweats, and unintentional weight loss, signaling that the disease process is evolving and requiring closer oversight by a hematologist.
Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.